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ABSTRACT:
SUBMITTER: Chakrabarti M
PROVIDER: S-EPMC2822436 | biostudies-literature | 2010 Feb
REPOSITORIES: biostudies-literature
Chakrabarti Mrinmoy M Deng Liang L Holm R H RH Münck Eckard E Bominaar Emile L EL
Inorganic chemistry 20100201 4
Two all-ferrous, edge-bridged 8Fe-8S clusters, one capped with carbenes (2) and the other with phosphenes (3), have been characterized by (57)Fe Mossbauer spectroscopy. The clusters have diamagnetic ground states that yield spectra consisting of one quadrupole doublet with a large splitting (25% of absorption) and one (3) or two (2) doublets with much smaller splittings (75% of absorption). These patterns closely resemble those observed for all-ferrous 4Fe-4S clusters. Structurally, the 4Fe-4S f ...[more]